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Passive Wireless SAW Humidity Sensors

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
87886
Program Year/Program:
2008 / STTR
Agency Tracking Number:
070122
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Applied Sensor Research & Development Corporation
1195 Baltimore-Annapolis Boulevard, Unit #2 Arnold, MD 21012-1815
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Passive Wireless SAW Humidity Sensors
Agency: NASA
Contract: NNX08CD42P
Award Amount: $100,000.00
 

Abstract:

This proposal describes the preliminary development of passive wireless surface acoustic wave (SAW) based humidity sensors for NASA application to distributed humidity monitoring systems. SAW devices are a platform technology for passive wireless sensing of numerous possible measurands. SAW devices have been demonstrated as passive wireless temperature sensors in NASA contracts NNK04OA28C and NNK05OB31C, and as hydrogen sensors and cryogenic liquid level sensors under contracts NNK06OM24C and NNK06OM23C. ASR&D is currently developing these sensors and systems further under NASA Phase II STTR contracts NNK07EA38C and NNK07EA39C. The proposed humidity sensors will use individually coded SAW device structures combined with hygroscopic film elements to produce rapid, sensitive humidity sensors capable of wireless operation over the full range of relative humidity (0% to 100%). The Phase I research will utilize the results obtained in ASR&D's coded SAW sensor and wireless interrogation system research, and external research on SAW-based and nanofilm based humidity sensing techniques. The team will evaluate hygroscopic films previously investigated and novel nanostructured films, along with sensor device simulation, to determine which films are most likely to produce devices with desirable characteristics. Issues including formation of chemically selective films on piezoelectric substrates, optimization of this film, and the effects of environmental factors on device performance will be investigated. Successful completion of the proposed Phase I activities will establish the technical feasibility of producing the proposed humidity sensors, evaluate their potential performance capabilities in a range of operational environments, and define the additional work necessary to effect device implementation. Assuming the results of Phase I are positive, Phase II could result in the development of multiple uniquely identifiable, wirelessly interrogable, humidity sensors.

Principal Investigator:

Leland P. Solie
Principal Investigator
4105444664
leesolie@asrdcorp.com

Business Contact:

Jacqueline Hines
Business Official
4105444664
Small Business Information at Submission:

Applied Sensor Research & Development Corporation
1195 Baltimore-Annapolis Blvd., Unit #2 Arnold, MD 21012

EIN/Tax ID: 203272943
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Temple University
1601 N. Broad Street
Philadelphia, PA 19122 6099
Contact Phone: (215) 204-9696
RI Type: Nonprofit college or university